Communication device, non-contact type card reader, and wireless system
First Claim
1. A communication device for supplying electric power to a communication partner, the communication device comprising:
- a non-contact control section configured to balanced-output transmission power;
an antenna circuit configured to transmit the transmission power as an electromagnetic wave; and
a matching circuit disposed between an output of the non-contact control section and an input of the antenna circuit and configured to perform impedance matching;
wherein the matching circuit and the antenna circuit are respectively provided with two systems;
wherein the antenna circuit comprises;
a first antenna circuit of a first system; and
a second antenna circuit of a second system;
wherein the matching circuit comprises;
a first matching circuit of the first system; and
a second matching circuit of the second system; and
wherein circuit structures from the output of the non-contact control section to the first antenna circuit via the first matching circuit and the second antenna circuit via the second matching circuit are formed symmetrically.
1 Assignment
0 Petitions
Accused Products
Abstract
A communication device having a function for supplying electric power to a communication partner may include a non-contact control section configured to balanced-output transmission power, an antenna circuit configured to transmit the transmission power as an electromagnetic wave, and a matching circuit which is disposed between an output of the non-contact control section and an input of the antenna circuit and is configured to perform impedance matching. The matching circuit and the antenna circuit are respectively provided with two systems and circuit structures from the output of the non-contact control section to the antenna circuits via the matching circuits of the two systems are formed symmetrically.
2 Citations
30 Claims
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1. A communication device for supplying electric power to a communication partner, the communication device comprising:
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a non-contact control section configured to balanced-output transmission power; an antenna circuit configured to transmit the transmission power as an electromagnetic wave; and a matching circuit disposed between an output of the non-contact control section and an input of the antenna circuit and configured to perform impedance matching; wherein the matching circuit and the antenna circuit are respectively provided with two systems; wherein the antenna circuit comprises; a first antenna circuit of a first system; and a second antenna circuit of a second system; wherein the matching circuit comprises; a first matching circuit of the first system; and a second matching circuit of the second system; and wherein circuit structures from the output of the non-contact control section to the first antenna circuit via the first matching circuit and the second antenna circuit via the second matching circuit are formed symmetrically. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A non-contact type card reader comprising a communication device for supplying electric power to a non-contact type IC card when the non-contact type card reader is to be wirelessly communicated with the non-contact type IC card,
wherein the communication device comprises: -
a non-contact control section configured to balanced-output transmission power; an antenna circuit configured to transmit the transmission power as an electromagnetic wave; and a matching circuit disposed between an output of the non-contact control section and an input of the antenna circuit and configured to perform impedance matching; wherein the matching circuit and the antenna circuit are respectively provided with two systems; wherein the antenna circuit comprises; a first antenna circuit of a first system; and a second antenna circuit of a second system; wherein the matching circuit comprises; a first matching circuit of the first system; and a second matching circuit of the second system; and wherein circuit structures from the output of the non-contact control section to the first antenna circuit via the first matching circuit and the second antenna circuit via the second matching circuit are formed symmetrically. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A wireless system comprising:
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a non-contact type IC card; and a non-contact type card reader comprising a communication device for supplying electric power to the non-contact type IC card when the non-contact type card reader is to be wirelessly communicated with the non-contact type IC card; wherein the communication device comprises; a non-contact control section configured to balanced-output transmission power; an antenna circuit configured to transmit the transmission power as an electromagnetic wave; and a matching circuit disposed between an output of the non-contact control section and an input of the antenna circuit and configured to perform impedance matching; wherein the matching circuit and the antenna circuit are respectively provided with two systems; wherein the antenna circuit comprises; a first antenna circuit of a first system; and a second antenna circuit of a second system; wherein the matching circuit comprises; a first matching circuit of the first system; and a second matching circuit of the second system; and wherein circuit structures from the output of the non-contact control section to the first antenna circuit via the first matching circuit and the second antenna circuit via the second matching circuit are formed symmetrically. - View Dependent Claims (27, 28, 29, 30)
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Specification